Examine source code of context cubari linker

{
  "manifest_version": 2,
  "name": "cubari Link Replacer",
  "version": "1.0",
  "description": "Replaces links with cubari.moe links",
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "permissions": [
    "activeTab",
    "menus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{83ca56f8-b06e-4bfc-a604-0d62e284c6b6}"
    }
  }
}